1. were

2. are

3. Was

4. have been

1. had had

2. has have

3. has had

4. Dhad have

1. to walk, get

2. walk, get

3. walking, get

4. walk, to get

1. sell, buy

2. function, repaired

3. move, drove

4. drive, steered

1. Goods

2. Speed

3. Traffic

4. Road